Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756707AbZAYMlm (ORCPT ); Sun, 25 Jan 2009 07:41:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752898AbZAYMlc (ORCPT ); Sun, 25 Jan 2009 07:41:32 -0500 Received: from lucidpixels.com ([75.144.35.66]:51573 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752621AbZAYMlb (ORCPT ); Sun, 25 Jan 2009 07:41:31 -0500 Date: Sun, 25 Jan 2009 07:41:30 -0500 (EST) From: Justin Piszcz To: Alan Cox cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, xfs@oss.sgi.com Subject: Re: Switching from (deprecated) IDE driver -> SATA (PATA support) In-Reply-To: Message-ID: References: <20090125110742.4ba54c0b@lxorguk.ukuu.org.uk> User-Agent: Alpine 1.10 (DEB 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2338 Lines: 81 On Sun, 25 Jan 2009, Justin Piszcz wrote: > > > On Sun, 25 Jan 2009, Justin Piszcz wrote: > >> >> >> On Sun, 25 Jan 2009, Justin Piszcz wrote: >> >>> >>> >>> On Sun, 25 Jan 2009, Alan Cox wrote: >>> >>>> Easiest is to use labels. Old ide will keep hda,b,c,d constant >>>> providing you have interfaces using the legacy IDE port mappings (0x1f0 >>>> and 0x170). Libata doesn't do that as pretty much every distribution had >>>> already switched to volume labels, and the user space can do the job far >>>> better than the kernel - especially as the newer devices with modern >>>> interfaces don't have the old BIOS/DOS legacy ideas any more. >>>> >>>> Mount by label also means you can flip back and forth between the >>>> different drivers and kernel revisions. >>>> >>>> Alan >>>> >> It comes with one :) >> # xfs_admin -u /dev/sdd2 >> UUID = 77ae4251-631f-4656-a365-c5723f5c5da8 >> >> Will try to use this to boot; however, I'd prefer the labels over the UUID, >> wish there was an easy way to set it. >> >> Justin. >> >> _______________________________________________ >> xfs mailing list >> xfs@oss.sgi.com >> http://oss.sgi.com/mailman/listinfo/xfs >> > > One final question, without udev, how does one determine the UUID of a > non-XFS > partition, e.g., swap? > > $ ls -l > total 0 > lrwxrwxrwx 1 root root 9 2009-01-25 01:54 > 203fcd30-4e56-40e9-a8e5-93ddc8eb536a -> ../../md0 > lrwxrwxrwx 1 root root 10 2009-01-25 01:54 > 2ef862e1-cf78-4065-a205-d1784716d633 -> ../../sdd1 > lrwxrwxrwx 1 root root 10 2009-01-25 01:54 > 77ae4251-631f-4656-a365-c5723f5c5da8 -> ../../sdd2 > > p254:~# find /proc/|grep -i uuid > /proc/sys/kernel/random/uuid > p254:~# find /sys/|grep -i uuid p254:~# > > In lilo.conf: root="UUID=77ae4251-631f-4656-a365-c5723f5c5da8" image=/boot/2.6.28-4 label=2.6.28-4 read-only root="UUID=77ae4251-631f-4656-a365-c5723f5c5da8" The /etc/fstab entry works, but not the LILO one. Also I found a bug (OOPS) with a box I was testing the new subsystem (SATA vs. old IDE) with, will send a bug report shortly. Justin. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/